EXHIBIT 23.6
INDEPENDENT AUDITORS' CONSENT
We consent to the incorporation by reference in this Registration
Statement of CMGI, Inc. on Form S-3, of our report dated October 18, 1999,
accompanying the consolidated financial statements of Flycast
Communications Corporation and subsidiary as of December 31, 1997 and 1998,
and for each of the three years in the period ended December 31, 1998,
included in the Current Report on Form 8-K of CMGI, Inc. dated December 17,
1999. We also consent to the reference to us under the heading "Experts" in
the prospectus, which is a part of this Registration Statement.
/s/ Deloitte & Touche LLP
San Jose, California
August 18, 2000
